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  <pre class="prettyprint lang-js">var Path = require(&quot;./Path&quot;);

function _typeof(obj) { &quot;@babel/helpers - typeof&quot;; if (typeof Symbol === &quot;function&quot; &amp;&amp; typeof Symbol.iterator === &quot;symbol&quot;) { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj &amp;&amp; typeof Symbol === &quot;function&quot; &amp;&amp; obj.constructor === Symbol &amp;&amp; obj !== Symbol.prototype ? &quot;symbol&quot; : typeof obj; }; } return _typeof(obj); }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(&quot;Cannot call a class as a function&quot;); } }

function _defineProperties(target, props) { for (var i = 0; i &lt; props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (&quot;value&quot; in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

function _possibleConstructorReturn(self, call) { if (call &amp;&amp; (_typeof(call) === &quot;object&quot; || typeof call === &quot;function&quot;)) { return call; } return _assertThisInitialized(self); }

function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError(&quot;this hasn&#39;t been initialised - super() hasn&#39;t been called&quot;); } return self; }

function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }

function _inherits(subClass, superClass) { if (typeof superClass !== &quot;function&quot; &amp;&amp; superClass !== null) { throw new TypeError(&quot;Super expression must either be null or a function&quot;); } subClass.prototype = Object.create(superClass &amp;&amp; superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

<span id='qrenderer-graphic-CompoundPath'>/**
</span> * @class qrenderer.graphic.CompoundPath 
 * 
 * CompoundPath to improve performance.
 * 
 * 复合路径，用来提升性能。
 * 
 * @docauthor 大漠穷秋 &lt;damoqiongqiu@126.com&gt;
 */
var defaultConfig = {
  shape: {
    paths: null
  }
};

var CompoundPath =
/*#__PURE__*/
function (_Path) {
  _inherits(CompoundPath, _Path);

<span id='qrenderer-graphic-CompoundPath-method-constructor'>  /**
</span>   * @method constructor CompoundPath
   * @param {Object} opts 
   */
  function CompoundPath(opts) {
    var _this;

    _classCallCheck(this, CompoundPath);

    _this = _possibleConstructorReturn(this, _getPrototypeOf(CompoundPath).call(this, opts, defaultConfig));
<span id='qrenderer-graphic-CompoundPath-property-type'>    /**
</span>     * @property {String} type
     */

    _this.type = &#39;compound&#39;;

    _this.on(&quot;beforeRender&quot;, _this.beforeRenderHandler);

    _this.on(&quot;afterRender&quot;, _this.afterRenderHandler);

    return _this;
  }
<span id='qrenderer-graphic-CompoundPath-method-_updatePathDirty'>  /**
</span>   * @private
   * @method _updatePathDirty
   */


  _createClass(CompoundPath, [{
    key: &quot;_updatePathDirty&quot;,
    value: function _updatePathDirty() {
      var dirtyPath = this.__dirtyPath;
      var paths = this.shape.paths;

      for (var i = 0; i &lt; paths.length; i++) {
        // Mark as dirty if any subpath is dirty
        dirtyPath = dirtyPath || paths[i].__dirtyPath;
      }

      this.__dirtyPath = dirtyPath;
      this.__dirty = this.__dirty || dirtyPath;
    }
<span id='qrenderer-graphic-CompoundPath-method-beforeRenderHandler'>    /**
</span>     * @private
     * @method beforeRenderHandler
     */

  }, {
    key: &quot;beforeRenderHandler&quot;,
    value: function beforeRenderHandler() {
      this._updatePathDirty();

      var paths = this.shape.paths || [];
      var scale = this.getGlobalScale(); // Update path scale

      for (var i = 0; i &lt; paths.length; i++) {
        if (!paths[i].path) {
          paths[i].createPathProxy();
        }

        paths[i].path.setScale(scale[0], scale[1], paths[i].segmentIgnoreThreshold);
      }
    }
<span id='qrenderer-graphic-CompoundPath-method-afterRenderHandler'>    /**
</span>     * @private
     * @method afterRenderHandler
     */

  }, {
    key: &quot;afterRenderHandler&quot;,
    value: function afterRenderHandler() {
      var paths = this.shape.paths || [];

      for (var i = 0; i &lt; paths.length; i++) {
        paths[i].__dirtyPath = false;
      }
    }
<span id='qrenderer-graphic-CompoundPath-method-buildPath'>    /**
</span>     * @method buildPath
     * 绘制元素路径
     * @param {Object} ctx 
     * @param {String} shape 
     */

  }, {
    key: &quot;buildPath&quot;,
    value: function buildPath(ctx, shape) {
      var paths = shape.paths || [];

      for (var i = 0; i &lt; paths.length; i++) {
        paths[i].buildPath(ctx, paths[i].shape, true);
      }
    }
<span id='qrenderer-graphic-CompoundPath-method-getBoundingRect'>    /**
</span>     * @private
     * @method getBoundingRect
     */

  }, {
    key: &quot;getBoundingRect&quot;,
    value: function getBoundingRect() {
      this._updatePathDirty();

      return Path.prototype.getBoundingRect.call(this);
    }
  }]);

  return CompoundPath;
}(Path);

module.exports = CompoundPath;</pre>
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